power on self test

Definitions

General Science

  • noun
    (written as power-on self test)
    a series of hardware tests that a computer carries out when it is first switched on.

Computing

  • noun a series of hardware tests that a computer carries out when it is first switched on.
  • acronymPOST

Electronics

  • (written as Power-On Self-Test)
    A series of diagnostic tests automatically performed when a computer boots. The tests are stored in the ROM, and include verifying the proper function of the RAM, drives, and so on. Its acronym is POST.
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